<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../react18/react.development.js"></script>
    <script src="../react18/react-dom.development.js"></script>
    <script src="../react18/babel.min.js"></script>
</head>

<body>
    <div id="app"></div>
    <script type="text/babel">
         /* 
            porps是用来做父子组件通信的
        - 在父组件中使用子组件的时候,可以给子组件添加属性
        - 在子组件中组件实例的props属性上,就能拿到这个属性和值
    
    */
    class Car extends React.Component{
      state = {
        car:[
          {id:"001",name:"奔驰",speed:"fast",color:'red'},
          {id:"002",name:"宝马",speed:"fast",color:'blue'},
          {id:"003",name:"奥迪",speed:"fast",color:'black'},
        ]
      }

      // 父组件
      render(){
        const {car} = this.state;
        return (
          <div>
          <h1>汽车信息</h1> 
          {
            car.map(item=>{
              const {name,speed,color,id} = item;
              return <Sedan key={id} {...item}/>
            })                
          } 
          </div>
        )
      }
    }

     class Sedan extends React.Component{
        render(){
          const{name,speed,color,id} = this.props;
          console.log(this.props);
          return(
            <ul>
              <li>名字：{name}</li>
              <li>速度：{speed}</li>
              <li>颜色：{color}</li>
            </ul>
          )
        }
      
     }
        const root = ReactDOM.createRoot(document.getElementById('app'));
        root.render(<Car />)
  </script>
</body>

</html>